in i.i.i I i\ \n SEI \i 01 I OMPAB ITIVE 



examination, be found i*> appk i<> a northern South American form, 



perhaps the one under di 



."). Pachyrhamphus polychopterus cinereiv] Sclater. 



Pachyrkamphua cinereiventris Sclater, ('.-it. Amer. birds, 1862, p. 242 

 Martha/ 1 ex Verreaux). Type.— British Museum, Sclater collection. 



bbpbcifig characters. -Similar to Pachyrkamphua polychopterus t, 

 (Kaup) of Venezuela, bul smaller; under parts paler, more uniform in color, 

 sometimes obscurely freckled with whitish. 



Measurements. — Male (twenty specimens) — wing, 70.0-75.5 

 (72.6); tail, 51.0-57.0 (53.3); tarsus, 17.0-19.0 (18.2); exposed oil- 

 men, 11.5-13.0 (12.4). 



Female (fourteen specimens) — wing, 67.5-69.5 (68.1); tail, 

 48.0-53.0 (50.5); tarsus, 17.0-18.5 (17.8); exposed culmen, 11.5- 

 13.0 (12.4). 



Range. — Santa Marta district of Colombia. 



Specimens examined. — Colombia (Santa Marta region) : " Sta. 

 Martha," 1 cf ; Cienaga, 1 c? ; Bonda, 15 cfd\ 10 9 9 ; Mamotoco, 

 1 9 ; Fundacion, 3 cfd 71 , 19; Calamar, 1 9 ; Gamara, 1 d 71 ; 

 Tucurinca, I 9 ; Aguachioa, 1 9 ; Jaraquiel, 1 9 . Total, 37. 



Remarks.— This form is quite distinct from the form inhabiting 

 Venezuela, Guiana, and Trinidad. Not only is it slightly smaller, 

 but the under parts are paler and seldom show much mottling. The 

 darker specimens, however, as might be expected, approach closely 

 in coloration to P. p. tristis, but in such cases the size readily dis- 

 tinguishes them. The paler specimens approach the next form, 

 P. j). costaricensis Chubb, and are hardly distinguishable from the 

 darker specimens of that form except in parallel scries. 



Hellmayr (Nov. zool., 1906, 13, p. 27), having examined the type 

 of P. cinereiventris Sclater in the British Museum, applied the name 

 to the Trinidad bird, explaining that the type "is dark cinereous, 

 more or less freckled with dull blackish, especially on the throat and 

 foreneck." Later lie and Graf von Seilern (Archiv naturg., 1912, 

 abt. A, heft 5, p. 89) used the name for the Venezuelan bird, with the 

 remark that probably the type came from Venezuela or Trinidad. 



We were strongly inclined to follow Hellmayr in this disposition of 

 the name rincrrircntris, and would have done so here, had we not been 

 influenced by other considerations. Mr. Todd, on his recent visit 



